8651 AZ pH and Oxidation Reduction Potential Meter features:
* Integrated pH and ORP measurement in one
* One touch auto-calibration up to 5 points
* Calibration values are adjustable
* Dual display pH / mV & Temperature
* Backlight display for using in dark area
* pH automatic buffer recognition to avoid errors during calibration
* pH electrode status indication
* Hold function to freeze the record
* Max./Min review of memorized data
* Easy to view probe calibration data.
* "Ready" icon on LCD to indicate the reading is stable or not
* USB connection for online logging or upload 99 memories to PC for analysis
* Automatic or manual temperature compensation are allowed
* Could be powered by adaptor for long time use
* Auto power off to save battery power
* Temperature unit ℃/°F is switchable
* Excellent tool as the Oxidation-reduction potential (ORP) meter

Specification of 8651 AZ pH and ORP Meter:

Model 8651
pH Measuring Range 0.00~14.00
pH Accuracy ±0.02
pH Resolution 0.01
mV Measuring Range -1999~1999 mV
mV Accuracy ±0.2mV (-199.9~1999.9mV) or ±2mV (others)
mV Resolution ±0.1mV (-199.9~1999.9mV) or ±1mV (others)
Temperature Measuring Range 0~60.0℃
Temperature Accuracy ±0.3℃
Temperature Resolution 0.1℃
ATC ATC
pH Calibration Up to 5 points
99 points memory YES
Real Time Clock YES
Compatible Probe pH probe (86P3, 86P2, 86P4, 86P6, 86P7, 86P1)
ORP probe (850P, 86P5)
LCD Size 44(L) * 26(W) mm
Operating Temperature 0~50℃
Operating RH% Humidity ＜80%
Storage Temperature -10~50℃
Storage RH% Humidity ＜90%
Sensor Life Time >6 months (with good maintenance)
Meter Size 175(L) * 70(W) * 33(H) mm
Weight ~150g
Battery AAA *4 PCS
Standard Package Meter, Batteries, Manual, Carry Case, Calibration Solution
Optional Accessory USB Cable & Software